VDB
CVE-2021-27391
CVE-2021-27391
PUBLISHED
CVSS 10 CRITICAL
A vulnerability has been identified in APOGEE MBC (PPC) (P2 Ethernet) (All versions >= V2.6.3), APOGEE MEC (PPC) (P2 Ethernet) (All versions >= V2.6.3), APOGEE PXC Compact (BACnet) (All versions < V3.5.3), APOGEE PXC Compact (P2 Ethernet) (All versions >= V2.8), APOGEE PXC Modular (BACnet) (All versions < V3.5.3), APOGEE PXC Modular (P2 Ethernet) (All versions >= V2.8), TALON TC Compact (BACnet) (All versions < V3.5.3), TALON TC Modular (BACnet) (All versions < V3.5.3). The web server of affected devices lacks proper bounds checking when parsing the Host parameter in HTTP requests, which could lead to a buffer overflow. An unauthenticated remote attacker could exploit this vulnerability to execute arbitrary code on the device with root privileges.
EPSS 2.86% · 86.5th percentile
Risk Scores
CVSS 2.0
10
EPSS Score
2.86%
86.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| siemens | talon_tc_modular_\(bacnet\)_firmware | 0 |
| Siemens | APOGEE MBC (PPC) (P2 Ethernet) | All versions >= V2.6.3 |
| siemens | talon_tc_compact_\(bacnet\)_firmware | 0 |
| Siemens | TALON TC Compact (BACnet) | All versions < V3.5.3 |
| siemens | apogee_mbc_\(ppc\)_\(p2_ethernet\)_firmware | 0 |
| Siemens | APOGEE PXC Compact (BACnet) | All versions < V3.5.3 |
| siemens | apogee_mec_\(ppc\)_\(p2_ethernet\)_firmware | 0 |
| Siemens | APOGEE PXC Modular (P2 Ethernet) | All versions >= V2.8 |
| siemens | apogee_pxc_compact_\(p2_ethernet\)_firmware | 0 |
| siemens | apogee_pxc_modular_\(p2_ethernet\)_firmware | 0 |
| Siemens | TALON TC Modular (BACnet) | All versions < V3.5.3 |
| Siemens | APOGEE MEC (PPC) (P2 Ethernet) | All versions >= V2.6.3 |
| siemens | apogee_pxc_bacnet_automation_controller_firmware | 0 |
| siemens | apogee_pxc_modular_\(bacnet\)_firmware | 0 |
| Siemens | APOGEE PXC Modular (BACnet) | * |
| Siemens | APOGEE PXC Compact (P2 Ethernet) | All versions >= V2.8 |
Exploit Intelligence
- This proof-of-concept script exploits a vulnerability in OpenSSH versions prior to 7.4 (CVE-2016-10708) by sending unexpected `SSH_MSG_NEWKEYS` packets. (github-poc)
- This proof-of-concept script exploits a vulnerability in OpenSSH versions prior to 7.4 (CVE-2016-10708) by sending unexpected `SSH_MSG_NEWKEYS` packets. (github-poc)
- This proof-of-concept script exploits a vulnerability in OpenSSH versions prior to 7.4 (CVE-2016-10708) by sending unexpected `SSH_MSG_NEWKEYS` packets. (github-poc)
- This proof-of-concept script exploits a vulnerability in OpenSSH versions prior to 7.4 (CVE-2016-10708) by sending unexpected `SSH_MSG_NEWKEYS` packets. (github-poc)
- This proof-of-concept script exploits a vulnerability in OpenSSH versions prior to 7.4 (CVE-2016-10708) by sending unexpected `SSH_MSG_NEWKEYS` packets. (github-poc)
- https://cert-portal.siemens.com/productcert/pdf/ssa-944498.pdf (circl)
Timeline
- Apr 13, 2021 CVE Published
- Sep 15, 2021 EPSS Score
- Oct 5, 2021 EPSS Score
- Nov 11, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 6, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Jun 29, 2022 EPSS Score
- Aug 27, 2022 EPSS Score
- Oct 23, 2022 EPSS Score
- Feb 15, 2023 EPSS Score
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-847986.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-549234.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-208530.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-288459.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-987403.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-535380.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-334944.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-676336.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-997732.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-835377.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-109294.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-453715.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-692317.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-756638.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-316383.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-330339.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-500748.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-535997.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-150692.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-413407.pdf advisory
…and 2 more